Improved chamber-vessel



MFEERS. PNOTO-LITHOGRAPHER. WASHINGTON. D C.

dotted ,giant geen one.

Letters Patent No. 101,419, dated April 5, 1870,

IMPROVED CHAMBER-VESSEL.

The Schedule referred to in these Letters Patent making part of the sameTo all whom t may concern Be it known that CHARLES H. Brunn', of EastSomerville, in the county ot' Middlesex and in the State ofMassachusetts, has invented a new and improved Ghamber-Vessel and doeshereby declare that the following description, taken in connection with`the accompanying plate ot' drawings hereinafter refer- `red to, forms afull and exact specification of the same, wherein I have set forth thenature and principles of my said improvement, by 'which m'y inventionmay be distinguished from others of a similar class, together with suchparts as I claim and desire to secure by Letters latent.

My invention relates to that class of householdutensils termedchamber-vessels; and

Its nature yconsists in certain modifications in the details, and usefulimprovements in the construction thereof, by means ot' which the vesselis made airtight, and its cover rendered easily detachable.

In theaecompaining plate of drawings, which illustrate iny invention andform a part of the specification thereof, in which corresponding prutsare illustrated by similar letters-.-

Figure 1 represents the cover, with my invention applied thereto, and

Figure 2 illustrates the vessel and cover united. The construction andoperation of my invent-ion .are as follows, to wit:

About the periphery of the flange a of the cover A is clit an annulargroove, in which is placed and fitted in such a manner as to be slightlyprotuberant, a ring of rubber, b, or other elastic and flexiblematerial.

Through the top of the said cover is cut an aperture providedwith thetightly-fitting spring valve C, which may be easily operated by thefinger.

Ihe inner circumference of the rim of the vessel is slightly beveled, inorder that the cover may be fitted tightly' by a slight downwardpressure, and removed without friction.

When the aperture in the top of the cover is closed by the valve, it isheld tightly in position by the pressnrc of the atmosphere, and noxiousand disagreeable fumes are prevented from escaping.

When the valve is raised, however, the pressure of the atmosphere isequalized, and the cover may be removed with facility.

Haviug tlms described the construction, operation, and relativearrangement of the component parts of my invention, I will indicate whatI claim and desire to secure by Letters Patent in the 4following clause:

I claim a chamber-vessel provided with a beveled rim, in combinationwith the cover A, provided with a valve. C, and annular groove, in whichisfitted a flexible ring, 'when constructed and operating as shown andspecified. A

In testimony that I claim the foregoing, I have hereunto set my handthis day of 8 Witnesses: CHAS. H. BERRY.

G. WHITMAN, J. W. Mns'rnk.

